ToolStripItem.MouseDown Event

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Source:

ToolStripItem.cs

Occurs when the mouse pointer is over the item and a mouse button is pressed.

C#

public event System.Windows.Forms.MouseEventHandler? MouseDown;

Event Type

MouseEventHandler

Examples

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the MouseDown event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox.Show with Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of a type that inherits from ToolStripItem, such as a ToolStripButton or ToolStripMenuItem. Then name the instance ToolStripItem1 and ensure that the event handler is associated with the MouseDown event.

C#

private void ToolStripItem1_MouseDown(Object sender, MouseEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "Button", e.Button );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Clicks", e.Clicks );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "X", e.X );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Y", e.Y );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Delta", e.Delta );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Location", e.Location );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "MouseDown Event" );
}

Remarks

Mouse events occur in the following order:

1. MouseEnter

2. MouseMove

3. MouseHover or MouseDown

4. MouseUp

5. MouseLeave

For more information about handling events, see Handling and Raising Events.

Applies to

See also

• MouseEnter
• MouseMove
• MouseHover
• MouseUp
• MouseLeave
• MouseEventArgs